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C-SAS-2009 © 2009 SIMPSON STRONG-TIE COMPANY INC.
HELI-TIE Helical Wall Tie
Guide Tension Loads in Various Base Materials
Size
in.
(mm)
³⁄₈
(9.0)
Base
Material
Solid
Brick 4
Hollow
Brick 5
Grout-Filled
CMU 6
Hollow
CMU 7
Normal-Weight
Concrete 8
2x4 Wood
Stud 9,11
Metal Stud 10,11
Compression (Buckling) Loads
Size
in.
(mm)
³⁄₈
(9.0)
Unsupported
Length
in.
(mm)
1
(25)
2
(50)
4
(100)
6
(150)
Anchor
Location
Mortar
Bed Joint
Brick
Face
Mortar
Bed Joint
Brick
Face
Center of
Face Shell
Web
Mortar
Bed Joint
Center of
Face Shell
Web
–
Center of
Thin Edge
Center of
Flange
Ultimate
Compression
Load 1
lbs.
(kN)
1,905
(8.5)
1,310
(5.8)
980
(4.4)
785
(3.5)
Drill Bit
Dia.
in.
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
⁷⁄₃₂
¹⁄₄
1. The Designer
shall apply a
suitable factor
of safety to
these numbers
to derive
allowable
service loads.
Min.
Embed.
Depth
in.
(mm)
3
(76)
2³⁄₄
(70)
1³⁄₄
(44)
2³⁄₄
(70)
2³⁄₄
(70)
1
(25)
Ultimate 2
lbs.
(kN)
570
(2.5)
365
(1.6)
1,310
(5.8)
815
(3.6)
530
(2.4)
775
(3.4)
510
(2.3)
1,170
(5.2)
830
(3.7)
1,160
(5.2)
810
(3.6)
720
(3.2)
530
(2.4)
790
(3.5)
505
(2.2)
1,200
(5.3)
675
(3.0)
880
(3.9)
990
(4.4)
590
(2.6)
450
(2.0)
200
(0.9)
155
(0.7)
Tension Load 1
Load at Max.
Permitted Displ. 3
lbs.
(kN)
240
(1.1)
130
(0.6)
565
(2.5)
350
(1.6)
285
(1.3)
405
(1.8)
185
(0.8)
405
(1.8)
350
(1.6)
440
(2.0)
330
(1.5)
320
(1.4)
205
(0.9)
305
(1.4)
255
(1.1)
445
(2.0)
385
(1.7)
410
(1.8)
380
(1.7)
370
(1.6)
260
(1.2)
120
(0.5)
95
(0.4)
Standard
Diviation
lbs.
(kN)
79
(0.4)
46
(0.2)
84
(0.4)
60
(0.3)
79
(0.4)
47
(0.2)
20
(0.1)
79
(0.4)
60
(0.3)
56
(0.2)
100
(0.4)
71
(0.3)
58
(0.3)
56
(0.2)
46
(0.2)
50
(0.2)
96
(0.4)
76
(0.3)
96
(0.4)
24
(0.1)
6
(0.0)
8
(0.0)
2
(0.0)
Caution: Loads are guide values
based on laboratory testing.
On-site testing shall be performed
for verifi cation of capacity since
base material quality can vary
widely.
1. Tabulated loads are guide values based on
laboratory testing. On-site testing shall be
performed for verifi cation of capacity since
base material quality can vary widely.
2. Ultimate load is average load at failure of the
base material. Heli-Tie fastener average
ultimate steel strength is 3,885 pounds and
does not govern.
3. Load at maximum permitted displacement is
average load at displacement of 0.157 inches
(4 mm). The designer shall apply a suitable
factor of safety to these numbers to derive
allowable service loads.
4. Solid brick values for nominal 4-inch wide
solid brick conforming to ASTM C62/C216,
Grade SW. Type N mortar is prepared in
accordance with UBC Section 2103.3 and
UBC Standard 21-15, or IBC Section 2103.8.
5. Hollow brick values for nominal 4-inch wide
hollow brick conforming to ASTM C216/C652,
Grade SW, Type HBS, Class H40V. Mortar is
prepared in accordance with UBC Section
2103.3 and UBC Standard 21-15, or
IBC Section 2103.8.
6. Grout-fi lled CMU values for 8-inch wide
lightweight, medium-weight and normal-weight
concrete masonry units conforming to UBC
Standard 21-4 or ASTM C90, Grade N, Type ll.
The masonry units must be fully grouted with
grout conforming with UBC Section 2103.4 or
IBC Section 2103.12. Type N mortar is
prepared in accordance with UBC Section
2103.3 and UBC Standard 21-15, or
IBC Section 2103.8.
7. Hollow CMU values for 8-inch wide lightweight,
medium-weight and normal-weight
concrete masonry units conforming to UBC
Standard 21-4 or ASTM C90, Grade N, Type ll.
Type N mortar is prepared in accordance with
UBC Section 2103.3 and UBC Standard 21-15,
or IBC Section 2103.8.
8. Normal-weight concrete values for concrete
with minimum specifi ed compressive strength
of 2,500 psi.
9. 2x4 wood stud values for nominal 2x4
Spruce-Pine-Fir.
10. Metal stud values for 20-gauge C-shape
metal stud.
11. For new construction. Anchor one end of tie
into backup material. Embed other end into
veneer mortar joint. Not for retrofi ts due to
diffi culty of locating center of 2x4 or metal
stud fl ange.
Heli-Tie Wall Tie Tension Tester
- Model HELITEST37A
Recommended equipment for
on-site testing to accurately determine
load values in any specifi c structure.
The Heli-Tie wall tie tension tester
features a key specifi cally designed to
grip the Heli-Tie fastener and provide
accurate results. Replacement test
keys sold separately
(Model HELIKEY37A).
Mechanical Anchors
169